Does this plugins works with 3.7.1 wordpress?

Nevermind tested it with default theme and its works so the problem is with my theme.

The problem was because I used wrong search form in tempalte.

With this form everything works okey:

<div id="searchform">
	<div class="sinside" >
		<form role="search" method="get" class="search-form" action="https://localhost/NewNordVPN/" autocomplete="off">
		<input autocomplete="off" type="text" name="s" class="keyword" placeholder="<?php echo __('Search..','nordvpn'); ?>" value="" >
		<div class="sico"></div>
		<input type="hidden" name="lang" value="<?php echo(ICL_LANGUAGE_CODE); ?>"/>
		<div class="clear"></div>
		</form>
	</div>
</div>